Shock-absorber for vehicles.



P. N. ROSENSTENGEL.

SHOCK ABSORBER FOR VEHICLES.

APPLICATION FILED MARS, 1909.

Patented Aug. 17. 1909.

2 SHEETS-SHEET 1.

/V1142 eat Lew.- 7 mm en-to b P. N. ROSENSTENGEL. SHOCK ABSORBER FOR VEHICLES. APPLICATION FILED MAR.3, 1909.

- UNITED STATES-PATENT OFFICE.

FREDERICK N. ROSENSTENGEL, orv INDIANAPOLIS, INDIANA, AssIeNon OF ONE-HALF TO FERDINAND R. STRIOKLER, OF FRANKLIN, INDIANA.

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Specification of Letters Patent.

Application filed March 3', 1909. Serial N0. 481,120.

Patented Au 17,1909.

To all whom it may concern:

Be it known that I, FREDERICK N. ROSEN- STENGEL, a citizen of the United States, re-

siding at Indianapolis, in the county of following is a specification.

The object of my invention is to provide improved adjustable means for relieving a vehicle from excessive jar andvibration and so arranged that the 'ShOClPjl'lGl'BtO will be absorbed and distributed equally between the" axles andframe of the vehicle, all as will be hereinafter more particularly described and claimed. The accompanying drawings illustrate my invention.

Figure 1 is a perspective view of the frame and running gear of a motor car embodying my invention; Fig. 2, a rear elevation of said frame; Fig. 3, a side elevation of my invention applied to an underhung frame; Fig. 4, arear elevation of the arrangement in icated in Fig. 3; Fig. 5, a side elevation of the hanger; Fig. 6, asectional view of said han er on the dotted line 6-6 in Fig. 5; and igs'. 7 and 8, detail views of spring connections which I employ.

In said drawings the portions marked 10 represent the frame or chassis, comprising parallel side and end members, as usual. To the side and rear frame. members, respectivel I attach a bracket, 12, com rising me'm ers, 13, 14, which support a anger, 15, pivotally mounted therebetween by a bolt, 16 the lower end of said hanger being provi "ed with ap'late, 17 to which an equalizing spring, as 18, 19, 20, is secured by bolts,

21. At the end of said bracket I also provide an. adjustable buffer comprising an interiorly screw-threaded socket member, 22, in which screw-threaded studs,23, are seated,

- and held in fixed (position by a lock-nut, 24:.

T0 the forwar ends of the equalizers 18 and 19 I pivotally secure springs, 25, by means of links, 26, connected to the ends of said equalizers and springs, respectively, by bolts or pins, 27, as indicated in Fig. 7, said springs 25 being also secured to the forward axle, 28, in any suitable manner, and their forward ends pivotally connected to the downwardly deflected forward ends, 29, 0f

the side frame members. I also provide rear side sprmgs, 30, secured to the rear axle, 31,

18, 19, in a manner similar to the pivotal connection just described in relation to spring 25, and adjustably connect said springs 30 to the ends of a rear equalizer, 20, when such is employed, preferably .by

-means of clips, 32, in the manner indicated inFig. 8. It will thus be seen that I provide in asimple manner a series of communicatmg springs upon.v which the frame is mounted, and so arranged that any 131' or excessive vibration imparted to any one of the wheels when affecting the axle will be transferred therefrom to its immediately connected spring, and from thence to all of the equalizers and springs, so that by such distribution of the-Jar or vibration the same is gradually absorbed by the springs and not in1- paged through the frame to the vehicle Bg means of the adjustable buftershereinbefore described the spring force of the equalizers may be regulated as desired by lowering and raising the studs 23 and securing them in fixed position by the lock-nuts and pivotally connected to said equalizers,

24:, the lowering of said studs, as will be readily understood, limiting the upward movement of the equalizer, and the raising thereof permitting greater action of said equalizer. I 1

In that type of car where'a substantially flat spring is employed on each side of the frame, running from the front to the rear end thereof (and not associated with a rear transverse spring), and having short bowed springs pivotally connected at its ends, and at their inner ends pivotally connected to clips dependent from said-main spring, the equalizer which I employ may be readily attached to the middle of said main sprin and pivotally connected to the inner ends 0% said short spring, in which manner I attain the results herelnbefore referred to.

While I have particularly described my invention in connection with a motor car frame designed to be supported thereon, as indicated in Fig. 1, it will be understood that it is as readily applicable to what is known as an underhung frame, which contemplates the suspension of the frame from springs, as indicated in Fig. 3.

By pivotally connecting the side springs in the manner indicated, which permits the shortening or lengthening of the set, I am enabled to apply the same to cars of varying lengths, and this is of great advantage, as I provide a set of springs of a single marketable size with which any ordinary motorcar or similar vehicle,- either before or while in use, may be readily equipped; and where a car is already provided with springs similar to the front and rear side springs the equalizers which I employ may be quickly attached to the frame and such springs pivotally connected thereto in the manner substantially as hereinbefore indicated.

Although I have chosen to illustrate and specifically describe an equalizer comprising a spring, I do not desire to be understood as limiting myself to such exact arrangement,

for, as willbe readily understood, a bar may be substituted for the semi-elliptical spring, to the ends ofwhich bar the front and rear side spring may be pivotally attached, and similar results obtained through the bar,

which, being pivotally mounted in the hanger, may rock upwardly and downwardly, its movement being controlled, by the bufiers in the same manner as the spring referred to. v

I claim as my invention: The combination, with a vehicle frame, of a shock absorber comprising a spring, adjustable buflers interposed between said spring and said vehicle frame for controlling the movement of said spring, and means for varying the length of said buffers and positively maintaining the same when adjusted in fixed relation to said spring.

In testimon whereof I afiix my signature in presence 0 two witnesses.

FREDERICK N. ROSENSTENGEL. Vitnesses:

LEE R. GARBER, WALTER J. TINGLE. 

